Abstract
The name Agrilus impexus Horn has been found to belong to a Great Plains species and to be misapplied to a common southwestern Agrilus. Agrilus impexus is redescribed and A. paraimpexus, new species, is described from New Mexico, Arizona and California to Costa Rica. It is distinguished from both Agrilus impexus and the closely related A. addendus Crotch from Texas to Vera Cruz, México, and a lectotype is designated for A. addendus. Agrilus frisoni Fisher is synonymized with A. addendus, new synonymy. Agrilus funestus Chevrolat is recorded from the United States for the first time and figured.References
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